Just found out that they have their own mobile game now. Sounds awesome, downloaded it as soon as I found out. But turns out you gotta literally pay to keep playing the game. After the first level is finished, you have to pay $9 to be able to play the rest of the game, which is only like, 12 levels or so. Funny because I didn't hear anything other than it being a free game.
So think, it could be worse. At least we don't always have to pay to get what we want as long as we already saved resources.